Grace's life gets complicated when what's supposed to be an heroic capture turns into an IA investigation; meanwhile, she continues her mission of revenge against Father Murphy, and Earl attempts a lesson in forgiveness.
Grace's life is full of missing persons and animals when her dog disappears while walking with Clay, and a friendship formed in the wake of the Murrah bombing is threatened when a young man and his girlfriend vanish.
When the department's evidence supervisor is murdered in the bar's bathroom while Ham and Grace are there, they must divide their time between finding the murderer and fending off an IA investigation.
Grace and the team pull out all the stops for a missing woman whom Grace has a gut feeling is dead, but the family dynamics complicate the investigation; Clay joins the police department's Explorer program; and Butch deals with the consequences of not calling.
While Ham deals with his loss, the team tries to lure the father of a burn victim to the hospital. Elsewhere, Bobby is pulled for a special assignment.